Charlotte Mendelson explains why she has chosen London's Hungarian community as the setting for for her fourth novel, a tale of miscommunication between a mother and daughter, which has been longlisted for the Man Booker prize. Plus we catch up with some of the people who took part in the Edinburgh world writers' conference, to find out what this year-long odyssey, involving authors from 14 countries around the world, has revealed about the state of the novel today.